Solve for x.
4(x-7) = 0.3(x + 2) + 2.11
x = 8.3
The circumference of a circle is 30 𝝅. What is its area in terms of 𝝅?
225 𝝅
(10 + √2)(12 - √6) =
120 - 10√6 + 12√2 - 2√3
Condense the following expression into a single logarithm:
3 log x - 5 log y + 2/3 log z
log [(x3+z2/3)/y5]
No calculator allowed:
6÷2(2+1) =
9
What's the exact value of x.
6 - (2/3)(x+5) = 4x
x = 4/7

In the figure shown, the circle has area 4 𝝅. What is the area of the square?
16
What is the inverse of the function
f(x) = 4x + 5?
f-1(x) = x/4 - 5/4
OR f-1(x) = (x-5)/4
Simplify (3-5i)/(8+2i) into a fraction where there is no imaginary number in the denominator.
(7-23i)/34

17, 20, 21
y ≤ -15x + 3000
y ≤ 5x
In the xy-plane, if a point with coordinates (a,b) lies in the solution set of the system of inequalities above, what is the maximum possible value of b?
750
What is the length of the side AC?

15
x2 + y2 + 4x - 2y = -1
The equation of a circle in the xy-plane is shown above. What is the radius of the circle?
2
Simplify 5/(2x-3) - 3/(2x-3)2
(10x-18)/(4x2-12x+9)
What is the formula of an ellipse?
Preparing for Walkathon, Kaila bought 2 blue wigs and 3 tutus for $43.90, Helen got 5 blue necklaces for $7.50, and Angelica paid $49.60 for 3 blue wigs and 2 tutus. If Tina wants to buy 1 blue necklace and 1 blue wig, how much should she pay?
$13.70
If a triangle has an area of 900 cm2, and its three sides are 40 cm, 62 cm, 90 cm, what is the longest altitude of this triangle?
45 cm
Solve for x, y, and z.
x + y + 2z = 3
2x + y + 3z = 7
-x -2y + z = 10
x = 1, y = -4, z = 3
Calculate the value of x in the equation shown below:
log2(x+1) + log2(5x+1) = 6
x=3
The Math NHS officers are making a fruit salad for their next meeting. Helen bought 33 bananas for $2.73 each pound and each banana weighed .20045 lbs. Tina bought 60 watermelons for $5 each pound and each watermelon weighed 13.31 lbs. Kaila bought 119 strawberries and it costs $25.81 per 7 strawberries. Angelica bought 40 apples for $1.21 each pound and each apple weighed 5.20 lbs. Mrs. Dziatko brought a bowl large enough to contain the fruit salad for $.99 at the Dollar Tree. What was the total cost of the fruit salad?
$4702.50